Python Tutorial - Prime Numbers | Printing Prime Numbers in Given Interval

In this python programming video tutorial you will learn about the prime numbers in detail with different examples.
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. Here we will discuss about how to write python program to print prime numbers in specific interval.
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[@keyboardxbeats3069]

Thank you! This was probably my 10th video trying to figure this out , and i think i finally got it. You're very good at explaining.

[@adeniranoluwaseun1229]

Have been struggling with understanding this and suddenly stumbled on this. So explanatory. Thank you for your effort.

[@aniketkolte8958]

Amulya's Academy Has Its Own Style Of Teaching .One Of The Best Channels On KZbin 🙌🙌🙌💥🔥🤑👏👏Thanks Mam!!!!

[@AmulsAcademy]

Thank you :)

[@kevinmungame1869]

Amazing teacher, finally I understood all I needed so far...beginner. Thank you

[@AmulsAcademy]

My Pleasure :)

[@rohiburrehman2865]

I just want to say one thing. Watched 10 videos but none of them were this good. Thank you so much. Hitting like and subscribe. For beginners this video is must.

[@abdullah-al-mamun4111]

You explain a complex thing in a wonderful and extraordinary manner. Great!

[@AmulsAcademy]

Thank you! 😃

[@nandhinis3300]

u r awsome sis if u were my python teacher i will topper in my class ❤❤☺☺☺

[@thirumalareddy5143]

Yes , But I want modules, Unittest Threading, Logging, Paramiko, For these models videos

[@greenff1742]

You are learning python for marks wow

[@familyvibes9707]

Congratulations sis

[@harshmaheshwari4112]

No

[@ayyanarayyanar5753]

Yes same feelings

[@sushimeng]

Hi, I have a question about what if 2 in the range(2, num), the range will be (2,2) which has no number contained.

[@harikrishnants8545]

It will print nothing. In this case, if your "num" is two(2), it means you would have given your upper limit as two(2).In range, it will take only (n-1) values. So that would print nothing. As it would be like (2,1), I suppose.

[@siewkingsam2534]

@@harikrishnants8545 then how she get 2 in the second example

[@zaidmekrani8983]

This is the best video i ever watched for python programming. This is really begginer friendly.

[@advatprashr13]

maam, i am not able to understand how 2 is getting printed if we use 2 as our lower limit. 2 will get divided by range(2,1) hence will break out from the loop and nothing should be printed. please reply

[@AmulsAcademy]

We took range form 2 to num. {for i in range(2,num)} when num is 2 range will become range(2,2) so it won't execute for loop body so it will execute else part and it will print 2 as prime number.

[@Himhim455]

your voice makes it interesting , but your expalanation is magic

[@AmulsAcademy]

Thank you :)

[@kusumsharma7293]

You are such a great teacher , thank for helping people , great jobs

[@sfundoy5dube59]

My greatest tutor ,I appreciate your work you're doing for us

[@AmulsAcademy]

Thank you 😊

[@khushbumodh8655]

subscribed!!! But 1 request is you have to upload daily basis video on python

[@kangajankuganathan7457]

you are my best teacher in the world. thank sister.

[@AmulsAcademy]

My Pleasure :)

[@DeepakRaj-pv5eo]

Hey amulya I have watched a video for prime numbers... I cant remember but it was like for i in range(2,n//2+1): If n%i ==0: break else: print(n) Is it true

[@AmulsAcademy]

Yes i think this will work :)

[@nagapavanyarramsetti283]

@@AmulsAcademy pls explain this

[@NajCarnage]

Thank you so much! You are great at explaining the logic behind the code for novices like me.

[@Aulin001]

Hopefully one day you definitely taking gold play button for such amazing content you deserve more and more subscribers Thank you for providing such amazing content mam

[@AmulsAcademy]

Thank you so much 😀

[@bhavana333]

It's awesome . The way you explained was too basic and it's really helped me to understand internal loop flow.

[@AmulsAcademy]

Pleasure :)

[@HarshitaChattopadhyay]

*Amazing*... Thanks a lot for helping me mam 😃😁😀

[@AmulsAcademy]

Pleasure :)

[@HarshitaChattopadhyay]

Amuls Academy mam can u make practice programs in dictionary also ...it's a quit important topic . They ask in exam

[@subbusubramanyam3375]

what is the execution if inner loop range is (2,2)

[@unknown__..--]

Same doubt

[@aachi3788]

2 cute voices in youtube.. 1,strell 2,your's Awesome class tnx mam

[@AmulsAcademy]

Thank you :)

[@sarveshmankar7272]

@@AmulsAcademy a

[@sabithrad8899]

Your way of teaching is very nice mam... Easily understood

[@AmulsAcademy]

Thank you :)

[@k_abhishek2056]

Thank you so much .now i m getting confident in coding because of ur video..love and respect🙏🙌❤

[@prasanthkumar7599]

very very very thanks for this understand ................... no words are coming finally after 3 days of madness in loops got this amazing,exellent vedio...... wow

[@shubhamjain154]

Would this code work or not if not then plzz tell me why no = int(input("enter the no")) count = 0 for j in range (1,no+1): for i in range(1,j+1): if j%i == 0: count+=1 if count == 2: print(i) else: pass

[@ThisIs_Ankush]

Wow what an explanation mam, today I saw your channel and this video first time ,now I have subscribed this channel bcoz my query has solved here only tysm mam please come up with such more videos🙏🙏

[@jithendrareddytamma6565]

Mam what about 2. 2 is also prime number, but after if statement is true, break statment will execute and I think its a loop. Pls explain

[@jithendrareddytamma6565]

I understood. This reply is for those who didn't understand for 2. If your Lower limit is 2. It's 2 > 1 but when 2 will go to the (2, num) loop. It will become (2,1) because num will be excluded. So it will directly go to the print(num) function.

[@anunayshukla7195]

will this program work if we take lower value as 2 ???

[@AnishEmilGodsonR]

i want to know why you are printing else statement in the line of for loop rather than if statement ???

[@AmulsAcademy]

We can use else with loops also, and here we need else with while loop 😀

[@dhritimanbharadwaj2741]

Why ELSE part is written below FOR, not below IF?

[@AmulsAcademy]

We can use else with loops, for and while loop. And here we can't use else part with if . If i use that i won't get proper output. for i in range(2,num): if (num % i) == 0: print(num,"is not a prime number") print(i,"times",num//i,"is",num) break else: print(num,"is a prime number") for example: take number 21 control goes to if condition and it will check, if 21%2==0 No so it come out of the if body and execute else part, that is it will print message 21 is prime number, but it is not. i need to check all divisors right. So we can't write like this. We are using for - else because it will check whole for loop body, it will divide the number with every other number starting from 2 and if that number is not divisible then we will print the message that is "not prime number". :)

[@charvireddy6432]

@@AmulsAcademy Thank you so much. I have the same question. it really makes sense to me now.

[@vedantx-b2986]

@@AmulsAcademy I was having the same question thnx for answering , actually no one explains this for-else loop nor I find it on any website so it's a bit confusing

[@ramyababu5139]

This video was Very clear explanation compare to other videos.....Thank you so much mam......

[@tgdesihiphopraps]

Wow!! Nice explanation Finally i got the logic for prime number I appreciate ur work

[@AmulsAcademy]

Glad to hear that :)

[@tgdesihiphopraps]

@@AmulsAcademy have u uploaded prime number using while loop because its way too confusing in while loop

[@soulfulman4834]

In case if we have to check only one input number is prime or not then how can we do it??? Another one that we know that 1 is prime number but by using this code we can't get result as 1 is prime number as u mentioned number > 1. So how we check 1 is prime number or not???

[@AmulsAcademy]

To check entered number is prime or not: kzbin.info/www/bejne/oJacd5aunLF1nJY 1 is not a prime number. :)

[@NBEESETTISRAVANI]

Than you so much mam,ur explanation will be change us ,please come again with more video to improve us mam

[@AmulsAcademy]

Pleasure 😊

[@deepikachalla8163]

I tried using without break statement in this code...I have given number as 9..output as showing as 9 is not a prime number and 9 is a prime number Num=int(input("enter a number:")) If num>1: For I in range(2,num): If num%i==0: Print num,"is not a prime number" Else: Print num,"is a prime number" Else: Print num,"is a prime" Pls explain

[@AmulsAcademy]

When i know there is a number which divides entered number then i know that number is not prime , so when for i in range(2,num): if num%i==0: This condition becomes true then i will print number is not prime and i don't want to execute anything else, so i used break statement there. for example if i take number as 16, first i will check whether 16 is divisible by 2 if yes then i won't check further , i know 16 is not prime so i will print that and stop execution. in your case you are not using break statement, so when i take number as 9, it will check 9%2==0 no so it will check 9%3==0 yes , so it will print 9 is not prime number, but again continue with the for loop, so it will check 9%4==0.... till i =8 ok. here if any other number divides 9 then again the massage "9 is not prime number" will be printed. After that control comes out of the loop , and it will execute else part because , The else block just after for/while is executed only when the loop is NOT terminated by a break statement. Ok so you will get 9 is prime number message also :)

[@deepikachalla8163]

@@AmulsAcademy thank you so much

[@manikandand2541]

hey 9 is not a prime number

[@muhammedanask8556]

Bro, what about num=2 and i=2 case So the loop will break, but 2 is prime Please explain

[@rma1563]

Your explanation is crystal clear! ❤

[@AmulsAcademy]

Thank you :)

[@jayasankar2269]

will you plz explain once

[@luisvaldez6295]

Explain me please, why you added " +1" the beginning . For num in range (lower, upper +1) , I ran without "+1" and it worked.

[@AmulsAcademy]

In range function, end is exclusive. syntax of rang function is, range(start,end,step) if you want to print 1 to 10 numbers then you need to take range as, range(1,11) try this: for i in range(1,11): print(i) :)

[@luisvaldez6295]

Amuls Academy I understood. Thank you 🤗

[@Sidramnathsing]

I have done what you did but then many of the numbers ended up printing multiple times. Can someone help me with this?

[@lekkalabhargav-di5fo]

Break the statement after one loop

[@ASHOKKUMAR-jm6yn]

Tnq for clean n crisp explanation. Keep uploading.. Lots of love from Visakhapatnam

[@AmulsAcademy]

Thank you :)

[@allenjr4978]

@@AmulsAcademy what if the lower value starts from 2

[@francismannion7075]

Thank you Amul for a very well presented lesson. Thanks to you I now understand !

[@AmulsAcademy]

My Pleasure :)

[@technicalguy5668]

i dont understand how 2 is printed when (2%2 == 0) if u take range from 2 to 15 instead of 5 ...how 2 is printed when its remainder is 0 when divided by 2...but your code is printing 2 how ?

[@austinejose1516]

yeah this is what my question also,,

[@AmulsAcademy]

for i in range(2,num): if (num % i) == 0: when num =2, for i in range(2,2) : so it won't execute for loop body, control goes to else part directly. so it won't execute if condition. If you have still confusion, execute this piece of code for i in range(2,2): print("h") else: print("a") in range() start and end value is same it won't execute the for loop. :)

[@kangajankuganathan7457]

@@AmulsAcademy thanks sister

[@anilmacharla6939]

is it correct? lower=int(input("enter the lower limit")) upper=int(input("enter the upper value:")) for num in range(lower,upper): if num>1: for i in range(2,num): if num%i==0: print(num,"not prime") break else: print(num,"prime")

[@AmulsAcademy]

In the for loop use range as lower to upper+1 😊

[@sahanasjalageri1092]

Mam only this method can use Or other methods r in there

[@nandathota]

I liked your voice and way of explanation very nice...really satisfied your channel name amuls..thanks soo much

[@clashon4645]

Has to really appreciate how well u explain everything 🙏🏻❤️💯

[@rahulprasadsingh2639]

lower=int(input('lower')) upper=int(input('upper')) for num in range (lower,upper+1): if num>1: for i in range (2,num): if num%i==0: break else: print(num)

[@deepikachalla8163]

Could you please upload the video for difference between functions,class,attributes,methods and explain it clearly with one example...how all works

[@AmulsAcademy]

Ok i will try :)

[@jitheshjackeyjo4998]

Wow..!! Excellent explanation ma'am

[@AmulsAcademy]

Thank you :)

[@nidhirajput810]

Amul good job...but I have a small doubt ..here u used else condition may I know it belongs to which if condition...

[@AmulsAcademy]

else is for, for loop :)

[@roasted_boy6213]

thanks mam u r really awesome i was not able to understand about num function in this code but u cleared my doubt thanks a lot again

[@AmulsAcademy]

You are welcome 😊

[@CorporateLifeRock]

thank you very much mam! really your all lectures are very helpful for me.

[@diogenes2784]

how do you count the length of "num" i tried: n=999 for num in range(0,n+1): if num>1: for i in range(2,num): if(num%i)==0: break else: print(len(num)) could you help?

[@AmulsAcademy]

convert num to string and use len() :)

[@diogenes2784]

@@AmulsAcademy n=999 for num in range(0,n+1): if num>1: for i in range(2,num): if(num%i)==0: break else: print(num) sum(int(num)) I don't know how to get it to work?

[@naveenadhikari5953]

can you plzz tell for which num you define for eg if you choose two limits 5 and 35 so for which FOR loop from 2,num is applicable

[@AmulsAcademy]

Sorry i am not getting your question can you please explain little more?

[@121atifaslam]

Hey, I need to print the prime numbers separated by commas, how can I do that?

[@AmulsAcademy]

lower = 900 upper = 1000 print("Prime numbers between",lower,"and",upper,"are:") for num in range(lower,upper + 1): if num > 1: for i in range(2,num): if (num % i) == 0: break else: print(num, end=",") print(end=".") In print() take end =coma :)

[@meenaljain5654]

else: print(num,end=",")

[@anajimenez5118]

@@AmulsAcademy i dont understand the in print() part, it gives me an error

[@VaasuNga]

Your tutorials are better than udemy.

[@AmulsAcademy]

Thank you:)

[@aneeshmalapaka8363]

mam this is so simple but...once check this code i got form a website www.programiz.com/c-programming/examples/prime-number-intervals here i didnt get the second for loop, why did they divide by 2 at all..like what is the reason...

[@AmulsAcademy]

They took 2 loops but they used 1 while loop and 1 for loop :)

[@sunilpatil31914]

Your explanation is best

[@AmulsAcademy]

Thanks a lot 😊

[@rudraavtar7754]

Aapka n *python tutorials* summe m bra aacha lgta h

[@sangbala9201]

I want numbers in single line and I want comma in between numbers. What can I do

[@AmulsAcademy]

use end parameter . you can try end="," in print function

[@sangbala9201]

@@AmulsAcademy Thank you

[@sangbala9201]

@@AmulsAcademy I have another doubt. If I use print(i, end=",") as you said, I get comma at the end of the number. That is , my lower range is 1 and my upper range is 10. My prime numbers are2,3,5,7 . If I use end="," in print , i get my output as 2,3,5,7, . I get comma at the end of 7. How to avoid this.

[@sachinshukla2227]

I am learning ,keep it up please

[@AmulsAcademy]

Thank you 😊

[@afifamrullah9496]

mam can you help me to make a list of prime numbers in loop with yes or no to continue? im stuck with int not callable

[@AmulsAcademy]

Give me your program i will correct it. :)

[@p.mousumipriyadarshini8677]

you got a new subscriber!!😊😊👌😘👍👍

[@AmulsAcademy]

Welcome!! :)

[@Navin_edits44]

Mam can you u tell me ...how to print the negative prime numbers

[@craftnclash1952]

its awesome tomorrow is my exam I hope I will do better tomorrow !😊😊

[@andrinrafealla8763]

Mam, how did this logic work for when num is 2 Coz 2%2==0

[@reetasharma7505]

Range from 2, num means num will not be included in the for loop

[@andrinrafealla8763]

@@reetasharma7505 : I didn't get it... can you please elaborate

[@AmulsAcademy]

for i in range(2, num) when num=2 for i in range(2,2) here range is from 2 to 2, so it won't execute for body. :)

[@kfbscit074aryansingh4]

Very well explained !!! Keep it up

[@mamatharani-xd6zp]

I love your teaching

[@saikrishna.arumalla3355]

your explanation is super.is this any possible to decrease the length of the programe ?

[@lohithv5060]

Mam excellent teaching 😊😊😊

[@AmulsAcademy]

Thanks a lot :)

[@lohithv5060]

Mam is there machine learning and artificial intelligence in your academy

[@lohithv5060]

If it is there, please send me the link .If it is not there please make a tutorial on it🙏🙏🙏🙏

[@sundaribalatripula4460]

Thank you so much mam ur videos are Very helpful... please keep going

[@AmulsAcademy]

Thank you :)

[@Rithanya117]

Hi here how 2 is executed if I put 2 as upper limit

[@zaedgtr6910]

Excellent explanation

[@ekeshtayal8178]

awesome video Sister,your videos helps me lot......................

[@AmulsAcademy]

Thank you:)

[@rohanmalandkar8566]

For which 'if loop' that 'else loop' is applied??

[@AmulsAcademy]

else part is used with for loop here :)

[@rohanmalandkar8566]

@@AmulsAcademy ok thanks got it

[@girijaaakula5322]

Thank you so much mam.. 👍🙏

[@johnstabbyman5704]

Do you have a video showing how to write a function that returns a list of the prime factors of a given number n? If not I would greatly appreciate seeing such an explanation. Thank you

[@AmulsAcademy]

Thank you for the suggestion. I will do that video soon :)

[@johnstabbyman5704]

Amuls Academy thanks! I will keep a look out at your channel

[@yaswanthreddy3839]

Great teaching ma'am

[@AmulsAcademy]

Thanks a lot :)

[@amritkaur5081]

Mam i dont get the indentation of else condition.

[@AmulsAcademy]

else is part for for loop, like if else we can use else with loops also. :)

[@prathameshpawar8793]

Nice explanation.

[@AmulsAcademy]

Thank you :)

[@anniedhawan7945]

superb 👌 could understand very easily. Thankyou ☺️

[@AmulsAcademy]

Most welcome 😊

[@TusharsMedlife]

Best explaination

[@AmulsAcademy]

Thank you :)

[@hhemanthkumar8599]

Ⓛⓞⓞⓢⓤ

[@sipahisnm]

best teacher ...

[@AmulsAcademy]

Thank you :)

[@shruteekhot1483]

This is so nicely explained.Thank you!

[@AmulsAcademy]

Glad it was helpful! :)

[@ayoubbelouadah7195]

I've tried it on pascal and instead of printing each prime number one time it printed 3 one time , 5 three times , 7 five times (intevalle is 2 to 10) any explanation ?

[@AmulsAcademy]

may be the misplacement of print() is the reason:) I don't know pascal language actually;)

[@joebrice8567]

late reply but you need to add break to the else statement aswell

[@wasimferoz6378]

Very lucid explanation ma'am Thank you

[@LPTV84]

Could someone please explain why the else statement is now a for-else statement? I never heard of that before.

[@komaljaswani7497]

Hi! Can you please make a video on the question: If a list in python has mix of strings & numbers, how will you make separate lists of strings & numbers? I saw ord() for getting ASCII code in python & chr() for converting ASCII codes to characters somewhere & tried to use them to get answer of this question but it did not work!! :(

[@sufiyanmogal1527]

Nice Explanation Mam 👏

[@saleem7266]

thank you madam u are really teaching well

[@AmulsAcademy]

Pleasure :)

[@prudhvi9440]

will ELSE work with FOR loop if it is C language

[@pravalmarya1892]

Thankyou for the incredible explanation.....

[@shashankgowda8063]

i was looking for a set of programming examples to practice...its great that i found your playlist!...solving the problems with proper explanation, tq

[@AmulsAcademy]

Glad it was helpful! :)

[@gujjugaming3177]

Nice mam this was useful in my study📚✏

[@sapnasaini6371]

Thanks for ur help..... But the spellings of *remainder* are not *reminder*

[@AmulsAcademy]

Haha.. i know 😊

[@sueseonsangnim5134]

Hi. thank you for this video. but, here, i got some coding to print prime number using the while loop. But, i dont really understand the code.(line 6-13). Can you please explain to me? thank you in advance. Really appreciate your help. print("THIS WILL PRINT PRIME NUMBER.") n=int(input("INPUT NUMBER: ")) p=i=2 while p

[@sanc7897]

Hats off ❤🎉

[@oluwadareisrael6696]

I had thought writing a program to calculate prime number was just a fantasy, until i stumble at your tutorial. very comprehensive! Could you give out your email so i can share with you some of the problems in python i do encounter, perhaps you can help me.

[@AmulsAcademy]

Thank you :) It's better you ask your queries here :) mail: [e-mail]

[@varshapn813]

Is it possible to use the condition if (num%i)!=0: